CN109829196A - A kind of self power-equipment noise hazard quantization control method - Google Patents
A kind of self power-equipment noise hazard quantization control method Download PDFInfo
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- CN109829196A CN109829196A CN201811621638.1A CN201811621638A CN109829196A CN 109829196 A CN109829196 A CN 109829196A CN 201811621638 A CN201811621638 A CN 201811621638A CN 109829196 A CN109829196 A CN 109829196A
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Abstract
The present invention provides a kind of self power-equipment noise hazard quantization control methods, comprising: step 1 installs four sections of vibration proof structures stage by stage on self power-equipment (V)；Each position quantified controlling of four sections of vibration proof structures is formed the whole control frequency of integration and amplitude carries out the control method of vibration damping noise isolating, four sections of vibration proof structures include: I section: damping frame VCS by step 2；IIth section: acoustic hood, shell are made by closing air-locked metal material；IIIth section: pasting elastic material in the inside and outside wall sound insulating material of pipeline, including pipeline outsourcing sound-absorbing material and pipe；Section IV section: the soft connection of wall bushing, installation includes: and installs damping frame VCS the first stage under equipment to reduce vibration frequency stage by stage；Second stage adds acoustic hood outside equipment reduces sound；Phase III pastes elastic material reduction vibration frequency in ventilation shaft outsourcing sound-absorbing material inside pipeline；The soft connection of fourth stage wall feed-through pipeline reduces sound.
Description
Technical field
The present invention relates to vibration control fields, more particularly to self power-equipment noise hazard quantization control method.
Background technique
The noise control of the self power-equipment of the large size public life Administrative Area such as office and office building is very heavy
It wants, currently, there is no complete set effective solution scheme for such engineering problem.It endangers for self power-equipment noise
When evil control, usually only considers the fundamental frequency for reducing power-equipment, the requirement of vibration and noise reducing is reached by the way that power-equipment is transformed.Summarize
For, the noise hazard control method of the prior art has the disadvantage that
(1) it is designed without system consideration.When self power-equipment noise hazard controls, make an uproar just for vibration source
Acoustic control design considers that noise source and transfer mode carry out Quantitative design without system, causes design improvement effect unobvious.
(2) single method noise reduction is used, cost performance is low.Traditional technology is when solving power-equipment noise hazard only with list
One method vibration and noise reducing, the vibration frequency due to caused by different structure are different, single method vibration and noise reducing have limitation and
It spends high-leveled and difficult to achieve the desired results.
(3) at high cost based on being transformed with civil engineering structure.It is spent for power-equipment noise hazard transformation civil engineering structure huge
Greatly, cumbersome for the adaptation step of wall, plate, it is great in constructing amount, do not solve noise nuisance from the root, economy is not applicable.
Summary of the invention
In order to overcome the deficiency of the prior art, the invention proposes a kind of four Duan Faliang of self power-equipment noise hazard
Change control method, this method is also easy to produce industry mainly for the common self power-equipment in current each office space and office building
Noise, endanger comfortable working environment health, noise be difficult to the problem of eliminating, four sections of method quantization control methods are not to civil engineering knot
Structure carries out in the case where being transformed energetically, effectively reduces influence of the noise to the destruction of working environment and to equipment itself, sends out
Bright design is proposed based on theory of vibration isolation and rigid obturator principle of energy dissipation, it is main include setting damping frame VCS and
Steel spring damper SSD, rigidity close acoustic hood, the inside and outside wall sound insulating material of pipeline, pipeline and the contact of wall soft material,
By designing a kind of four sections of method quantization control methods, each position is subjected to quantified controlling, forms the whole control frequency of integration
The control technique of vibration damping noise isolating is carried out with amplitude, it is both easy to implement, convenient for transformation, and it can guarantee economy.
The purpose of the present invention is to provide self power-equipment noise hazard quantization control methods, comprising:
Step 1 installs four sections of vibration proof structures stage by stage on self power-equipment (V)；
Each position of four sections of vibration proof structures is carried out quantified controlling by step 2, forms the whole control frequency of integration
Rate and amplitude carry out the control method of vibration damping noise isolating.
Preferably, four sections of vibration proof structures include:
I section: damping frame VCS is higher than 100Hz when the damping frame VCS runs the self power-equipment
For vibration frequency control within 20Hz, damping frame VCS cost is the 30% of integrated artistic, effectively weakens self power-equipment
The strong vibration generated when operation；
IIth section: acoustic hood, the acoustic hood shell is by the air-locked gold with constant weight and rigidity of one layer of closing
Belonging to material to be made, the sound control higher than 70dB for generating the self power-equipment operating is being lower than 50dB, every
Acoustic shell cost is the 45% of integrated artistic, effectively obstructs the unofficial biography of noise, reduces the influence of Noise upon Environment；
IIIth section: pasting elastic material, institute in the inside and outside wall sound insulating material of pipeline, including pipeline outsourcing sound-absorbing material and pipe
Sound-absorbing material is stated loaded on the pipe surface, makes the vibration frequency control of gas 0-50Hz when passing through pipeline to 0-15Hz,
Cost is the 20% of integrated artistic, can effectively make sound energy attenuation, achievees the effect that reduce noise；
Section IV section: the soft connection of wall bushing, for make less than 50dB rattle control to 40dB or less (including
40dB), cost is the 5% of integrated artistic；
Four sections of vibration proof structures are installed stage by stage in the step 1, the first stage, and damping frame VCS drop is installed under equipment
Low vibration frequency；Second stage adds acoustic hood outside equipment reduces sound；Phase III in ventilation shaft outsourcing sound-absorbing material,
And elastic material reduction vibration frequency is pasted inside pipeline；Fourth stage is that the soft connection of wall feed-through pipeline reduces sound.
Preferably, the I section further includes multiple steel spring cushions, is arranged below damping frame VCS.
Preferably, layer overlay certain thickness, the preferably steel plate of 2~3 millimeters thicks are gone back on the outside of the Section II section acoustic hood
As damping layer.
Preferably, the absorbing material of the Section III section by by resonant interaction sound absorption flexible material, film material,
Board-like material and perforated plate composition.
Preferably, padded coaming is added between the soft connection of the Section IV section wall bushing and structure floor, slowed down
Because of the friction of gas compression generates in ventilation shaft vibration soft to the wall bushing connection and wall.
Preferably, when the self power-equipment V is operated, frictional force, impact force or unbalanced force between component make machine
Tool component and shell, which generate, to be vibrated and radiated noise.
Preferably, the self power-equipment V includes refrigerating water pump, motor or freezing machine.
Beneficial effects of the present invention:
(1) the whole control of integration.What the selfs power-equipment such as freezing machine, refrigerating water pump, motor generated at runtime makes an uproar
Sound causes great harm the physical and mental health of surrounding working environment and people, and traditional solution is all very single, noise reduction energy
Power is limited, cannot be effectively reduced noise hazard, therefore using pedestal setting damping frame and steel spring damper, wall cloth
If acoustic hood, pipeline wrap up in the measure of dress sound insulating material and the soft this quaternity of connection of elastic material, pipeline through-wall to equipment
Different positions carries out noise control simultaneously, realizes maximizing the benefits.
(2) it is controlled from wideband to single-frequency.In Practical Project, due to valve in the pressure fluctuation pipe-line system of trandfer fluid
Unlatching and closure etc. can all cause impact of the fluid to pipeline, and equipment Main Noise Sources are wideband eddy current crack under high revolving speed；Turn
Speed and anti-icing fluid temperature are affected to work noise, cause the endurance failure of structure to generate forced vibration or resonate.It is logical
It crosses and lays when damping frame VCS, steel spring damper run power-equipment vibration frequency control within 20Hz in pedestal；
Wrapped on air supply duct wall vibration frequency control that sound insulating material and elastic material make gas when passing through pipeline 15Hz it
It is interior.It realizes conversion of the frequency from wideband to single-frequency, efficiently avoids generating resonance and causing to generate shadow to surrounding working environment
It rings.
(3) four sections of scalar quantization controls take measures to each component system is made to reach vibration damping drop by whole scalar quantization
The effect made an uproar.
(4) easy to implement, convenient for transformation.This control method from vibration source, by power-equipment, carry out step by step
Vibration control, step is clear, and numerical value is clear, has very strong operability, facilitates construction.
(5) good economy performance.This control method is at low cost without being transformed to civil structure.Most of control group of making an uproar of shaking
Part can customize in advance, and construction period is short.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.Target and feature of the invention will be apparent from view of following description taken together with the accompanying drawings,
In attached drawing:
Attached drawing 1 is four after being implemented according to the self power-equipment noise hazard quantization control method of the embodiment of the present invention
Section vibration proof structure schematic diagram.
Specific embodiment
Frictional force, impact force or non-referring to Fig. 1, when the present embodiment is applied to self power-equipment V operating, between component
Equilibrant force makes mechanical part and shell generate vibration the case where radiated noise, and self power-equipment V includes refrigerating water pump, electricity
Machine or freezing machine.
Four sections of vibration proof structures include: I section: damping frame VCS, and the damping frame VCS sets the self power
It is higher than 100Hz vibration frequency control when received shipment row within 20Hz, damping frame VCS cost is the 30% of integrated artistic, effectively
Weaken the strong vibration generated when the operation of self power-equipment；IIth section: acoustic hood, the acoustic hood shell are closed not by one layer
The ventilative metal material with constant weight and rigidity is made, for making being higher than for the self power-equipment operating generation
The sound control of 70dB is the 45% of integrated artistic being lower than 50dB, acoustic hood cost, effectively obstructs the unofficial biography of noise, reduces
The influence of Noise upon Environment；IIIth section: pasting bullet in the inside and outside wall sound insulating material of pipeline, including pipeline outsourcing sound-absorbing material and pipe
Property material, sound-absorbing material is loaded on the pipe surface, the absorbing material of Section III section by by resonant interaction sound absorption flexible material,
Film material, board-like material and perforated plate composition, make the vibration frequency control of gas 0-50Hz when passing through pipeline to 0-
15Hz, cost are the 20% of integrated artistic.Sound energy attenuation can effectively be made, achieve the effect that reduce noise；Section IV section: wall bushing
Soft connection, for making the rattle control less than 50dB to 40dB or less (including 40dB), cost is integrated artistic
5%.
Self power-equipment noise hazard quantization control method, comprising: step 1, on self power-equipment (V)
Four sections of vibration proof structures are provided, four sections of vibration proof structures are installed stage by stage, the first stage, and damping frame VCS is installed under equipment to be reduced
Vibration frequency；Second stage adds acoustic hood outside equipment reduces sound；Phase III in ventilation shaft outsourcing sound-absorbing material, and
Elastic material is pasted inside pipeline reduces vibration frequency；Fourth stage is that the soft connection of wall feed-through pipeline reduces sound；Step 2, will
Each positions of four sections of vibration proof structures carries out quantified controlling, form the whole control frequency of integration and amplitude carry out vibration damping every
The control method made an uproar.
In the present embodiment, I section further includes multiple steel spring cushions, is arranged below damping frame VCS, first
Stage installation.
In the present embodiment, the steel plate of 2~3 millimeters thick of layer overlay is gone back on the outside of Section II section acoustic hood as damping layer, the
Two-stage installation.
In the present embodiment, Section IV section wall bushing it is soft connection structure floor between added padded coaming, slow down because
The friction of the vibration that gas compression generates in ventilation shaft soft to wall bushing connection and wall.
Using the present embodiment, there is following features and effect:
1, the whole control frequency of integration and amplitude.It is not able to satisfy self power-equipment noise control for single method
Complete equipment is decomposed into Frequency And Amplitude Modulation control by the demand of system, it may be assumed that (1) damping frame, steel bullet are arranged under equipment base
Spring damper and duct wall be arranged sound insulating material, avoid resonance elastic material the frequency of vibration equipment is adjusted to list by wideband
Frequently.And it is effectively prevented from resonance.(2) acoustic hood an of closure is laid around self power-equipment and in structure floor
Soft sound insulating layer control amplitude is added between conveyance conduit to make an uproar to achieve the effect that sound absorption removes.
2, four sections of scalar quantization designs, target construction process and adjustable strategies.Autonomous device noise control is classified
Four-stage is taken in segment quantization control, and the first stage installs damping frame under Equipment Foundations and steel spring damper will
The vibration frequency control of > 100Hz is to < 20Hz when power-equipment is run；Second stage disposes acoustic hood in equipment periphery, makes to set
The sound of > 70dB is reduced to < 50dB when received shipment row；Elastic material is pasted in phase III pipeline outsourcing sound-absorbing material, pipeline, is made
Air circulation generates the vibration frequency control of 0-50Hz to 0-15Hz；The soft connection of fourth stage wall feed-through pipeline, makes pipe vibration
The sound of caused < 50dB is reduced to≤40dB.
Although the present invention is described by reference to specific illustrative embodiments, these embodiments are not will receive
Restriction and only limited by accessory claim.It should be understood by those skilled in the art that can be without departing from of the invention
Change and modification are able to carry out to the embodiment of the present invention in the case where protection scope and spirit.
Claims (8)
1. a kind of self power-equipment noise hazard quantization control method, characterized by comprising:
Step 1 installs four sections of vibration proof structures stage by stage on self power-equipment (V)；
Each positions of four sections of vibration proof structures is carried out quantified controlling by step 2, formed the whole control frequency of integration and
The control method of amplitude progress vibration damping noise isolating.
2. a kind of self power-equipment noise hazard quantization control method according to claim 1, it is characterised in that institute
Stating four sections of vibration proof structures includes:
I section: damping frame VCS weakens the strong vibration generated when the operation of self power-equipment；
IIth section: acoustic hood, the acoustic hood shell is by the air-locked metal material with constant weight and rigidity of one layer of closing
Material is made, and the sound control higher than 70dB for generating the self power-equipment operating is lower than 50dB；
IIIth section: pasting elastic material, the suction in the inside and outside wall sound insulating material of pipeline, including pipeline outsourcing sound-absorbing material and pipe
Sound material is loaded on the pipe surface, makes the vibration frequency control of gas 0-50Hz when passing through pipeline to 0-15Hz, makes sound
It can decay, achieve the effect that reduce noise；
Section IV section: the soft connection of wall bushing, for making the rattle control less than 50dB to 40dB and following；
Four sections of vibration proof structures are installed stage by stage in the step 1, the first stage, and damping frame VCS is installed under equipment reduces vibration
Dynamic frequency；Second stage adds acoustic hood outside equipment reduces sound；Phase III in ventilation shaft outsourcing sound-absorbing material, and
Patch elastic material reduces vibration frequency inside pipeline；Fourth stage is that the soft connection of wall feed-through pipeline reduces sound.
3. a kind of self power-equipment noise hazard quantization control method according to claim 2, it is characterised in that: institute
Stating I section further includes multiple steel spring cushions, is arranged below damping frame VCS.
4. a kind of self power-equipment noise hazard quantization control method according to claim 2, it is characterised in that: institute
It states and goes back the certain thickness steel plate of layer overlay as damping layer on the outside of Section II section acoustic hood.
5. a kind of self power-equipment noise hazard quantization control method according to claim 2, it is characterised in that: institute
The absorbing material of Section III section is stated by flexible material, film material, board-like material and the perforated plate by resonant interaction sound absorption
Composition.
6. a kind of self power-equipment noise hazard quantization control method according to claim 2, it is characterised in that: institute
It states and adds padded coaming between the soft connection of the Section IV section wall bushing and structure floor, slow down because of gas pressure in ventilation shaft
The friction of the vibration generated of contracting soft to the wall bushing connection and wall.
7. a kind of self power-equipment noise hazard quantization control method according to claim 1, it is characterised in that: institute
When stating self power-equipment (V) operating, frictional force, impact force or unbalanced force between component produce mechanical part and shell
Life is vibrated and radiated noise.
8. a kind of self power-equipment noise hazard quantization control method according to claim 7, it is characterised in that: institute
Stating self power-equipment V includes refrigerating water pump, motor or freezing machine.
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| CN201811621638.1A CN109829196A (en) | 2018-12-28 | 2018-12-28 | A kind of self power-equipment noise hazard quantization control method |
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Cited By (1)
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| CN115076497A (en) * | 2022-07-05 | 2022-09-20 | 中建安装集团有限公司 | Noise vibration control system of combined electromechanical system |
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